root / branches / v2_0_0_prep / libraries / libFMap_controls / src / org / gvsig / fmap / mapcontrol / dal / feature / swing / FeatureSelectionModel.java @ 38564
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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/*
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* AUTHORS (In addition to CIT):
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* 2010 {} {{Task}}
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*/
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package org.gvsig.fmap.mapcontrol.dal.feature.swing; |
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import javax.swing.ListSelectionModel; |
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import javax.swing.event.EventListenerList; |
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import javax.swing.event.ListSelectionEvent; |
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import javax.swing.event.ListSelectionListener; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.feature.Feature; |
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import org.gvsig.fmap.dal.feature.FeatureSelection; |
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import org.gvsig.fmap.dal.feature.FeatureStore; |
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import org.gvsig.fmap.dal.feature.FeatureStoreNotification; |
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import org.gvsig.fmap.dal.feature.exception.ConcurrentDataModificationException; |
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import org.gvsig.fmap.mapcontrol.dal.feature.swing.table.FeatureTableModel; |
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import org.gvsig.tools.observer.Observable; |
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import org.gvsig.tools.observer.Observer; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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/**
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* @author 2010- C?sar Ordi?ana - gvSIG team
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*/
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public class FeatureSelectionModel implements ListSelectionModel, Observer { |
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private static Logger LOG = |
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LoggerFactory.getLogger(FeatureSelectionModel.class); |
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protected EventListenerList listenerList = new EventListenerList(); |
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private final FeatureTableModel featureTableModel; |
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private int selectionMode = SINGLE_INTERVAL_SELECTION; |
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private boolean isAdjusting = false; |
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private int anchor = -1; |
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private int lead = -1; |
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private int currentFirst = -1; |
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private int currentLast = -1; |
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/**
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* Creates a new {@link FeatureSelectionModel} with a
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* {@link FeatureTableModel} used to get the {@link Feature}s by position in
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* the table.
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*
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* @param featureTableModel
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* to get Features from
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* @throws DataException
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* if there is an error getting the store selection
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*/
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public FeatureSelectionModel(FeatureTableModel featureTableModel)
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throws DataException {
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this.featureTableModel = featureTableModel;
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this.featureTableModel.getFeatureStore().addObserver(this); |
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} |
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public int getAnchorSelectionIndex() { |
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return anchor;
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} |
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public int getLeadSelectionIndex() { |
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return lead;
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} |
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public int getMaxSelectionIndex() { |
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FeatureSelection selection = getFeatureSelection(); |
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try {
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if (!selection.isEmpty()) {
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for (int i = featureTableModel.getRowCount() - 1; i >= 0; i--) { |
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if (selection.isSelected(featureTableModel.getFeatureAt(i))) {
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return i;
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} |
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} |
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} |
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} catch (DataException e) {
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throw new SelectionChangeException(e); |
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} |
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return -1; |
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} |
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public int getMinSelectionIndex() { |
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FeatureSelection selection = getFeatureSelection(); |
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try {
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if (!selection.isEmpty()) {
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for (int i = 0; i < featureTableModel.getRowCount(); i++) { |
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if (selection.isSelected(featureTableModel.getFeatureAt(i))) {
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return i;
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} |
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} |
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} |
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} catch (DataException e) {
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throw new SelectionChangeException(e); |
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} |
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return -1; |
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} |
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public void insertIndexInterval(int index, int length, boolean before) { |
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// Nothing to do
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} |
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public void removeIndexInterval(int index0, int index1) { |
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// Nothing to do
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} |
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public void setAnchorSelectionIndex(int index) { |
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this.anchor = index;
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} |
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public void setLeadSelectionIndex(int index) { |
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this.lead = index;
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} |
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public void addSelectionInterval(int index0, int index1) { |
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doWithSelection(new FeatureSelectionOperation() {
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public void doWithSelection(FeatureSelection selection, int first, |
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int last) throws DataException { |
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for (int i = first; i <= last; i++) { |
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Feature feature = getFeature(i); |
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if (!selection.isSelected(feature)) {
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selection.select(feature); |
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} |
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} |
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} |
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}, index0, index1, true);
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} |
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public void setSelectionInterval(int index0, int index1) { |
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doWithSelection(new FeatureSelectionOperation() {
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public void doWithSelection(FeatureSelection selection, int first, |
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int last) throws DataException { |
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selection.deselectAll(); |
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for (int i = first; i <= last; i++) { |
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Feature feature = getFeature(i); |
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selection.select(feature); |
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} |
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} |
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}, index0, index1, true);
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} |
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public void removeSelectionInterval(int index0, int index1) { |
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doWithSelection(new FeatureSelectionOperation() {
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public void doWithSelection(FeatureSelection selection, int first, |
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int last) throws DataException { |
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for (int i = first; i <= last; i++) { |
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Feature feature = getFeature(i); |
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if (selection.isSelected(feature)) {
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selection.deselect(feature); |
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} |
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} |
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} |
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}, index0, index1, false);
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} |
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public void clearSelection() { |
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try {
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getFeatureSelection().deselectAll(); |
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} catch (DataException e) {
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throw new SelectionChangeException(e); |
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} |
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} |
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public boolean isSelectedIndex(int index) { |
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if (index == -1) { |
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return false; |
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} |
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Feature feature = featureTableModel.getFeatureAt(index); |
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return getFeatureSelection().isSelected(feature);
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} |
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public boolean isSelectionEmpty() { |
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try {
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return getFeatureSelection().isEmpty();
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} catch (DataException ex) {
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throw new SelectionChangeException(ex); |
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} |
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} |
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public boolean getValueIsAdjusting() { |
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return isAdjusting;
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} |
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public void setValueIsAdjusting(boolean valueIsAdjusting) { |
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if (this.isAdjusting != valueIsAdjusting) { |
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this.isAdjusting = valueIsAdjusting;
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if (this.isAdjusting) { |
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getFeatureSelection().beginComplexNotification(); |
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} else {
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getFeatureSelection().endComplexNotification(); |
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} |
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} |
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} |
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public int getSelectionMode() { |
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return selectionMode;
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} |
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public void setSelectionMode(int selectionMode) { |
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this.selectionMode = selectionMode;
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} |
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public void addListSelectionListener(ListSelectionListener listener) { |
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listenerList.add(ListSelectionListener.class, listener);
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} |
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public void removeListSelectionListener(ListSelectionListener listener) { |
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listenerList.remove(ListSelectionListener.class, listener);
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} |
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public void update(Observable observable, Object notification) { |
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if (notification instanceof FeatureStoreNotification) { |
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FeatureStoreNotification fnotification = |
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(FeatureStoreNotification) notification; |
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if (!fnotification.getSource().equals(getFeatureStore())) {
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return;
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} |
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if (FeatureStoreNotification.SELECTION_CHANGE.equals(fnotification.getType())) {
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try{
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fireValueChanged(-1, -1, false); |
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}catch(ConcurrentDataModificationException e){
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LOG.warn("The store has been updated and the selection can not be refreshed", e);
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} |
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} |
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} |
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} |
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private FeatureSelection getFeatureSelection() {
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try {
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return (FeatureSelection) getFeatureStore().getSelection();
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} catch (DataException ex) {
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throw new SelectionChangeException(ex); |
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} |
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} |
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/**
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* @param operation
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* @param index0
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* @param index1
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*/
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private void doWithSelection(FeatureSelectionOperation operation, |
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int index0, int index1, boolean select) { |
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// Set the anchor and lead
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anchor = index0; |
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lead = index1; |
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// As index0 <= index1 is no guaranteed, calculate the first and second
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// values
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int first = (index0 <= index1) ? index0 : index1;
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int last = (index0 <= index1) ? index1 : index0;
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//If the new selection is not updated don't continue
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if ((currentFirst == first) && (currentLast == last)){
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return;
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} |
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currentFirst = first; |
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currentLast = last; |
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FeatureSelection selection = getFeatureSelection(); |
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// Perform the selection operation into a complex notification
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selection.beginComplexNotification(); |
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try {
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// Is a full select or deselect
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if (first == 00 && last == featureTableModel.getRowCount() - 1) { |
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if (select) {
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selection.selectAll(); |
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} else {
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selection.deselectAll(); |
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} |
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} else {
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operation.doWithSelection(selection, first, last); |
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} |
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} catch (DataException e) {
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throw new SelectionChangeException(e); |
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} finally {
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selection.endComplexNotification(); |
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} |
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fireValueChanged(first, last, isAdjusting); |
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} |
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/**
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* Returns a Feature by table row position.
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*/
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private Feature getFeature(int index) { |
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return featureTableModel.getFeatureAt(index);
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} |
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/**
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* Returns the FeatureStore.
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*/
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private FeatureStore getFeatureStore() {
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return featureTableModel.getFeatureStore();
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} |
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/**
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* @param firstIndex
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* the first index in the interval
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* @param lastIndex
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* the last index in the interval
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* @param isAdjusting
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* true if this is the final change in a series of adjustments
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* @see EventListenerList
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*/
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protected void fireValueChanged(int firstIndex, int lastIndex, |
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boolean isAdjusting) {
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Object[] listeners = listenerList.getListenerList(); |
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ListSelectionEvent e = null; |
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for (int i = listeners.length - 2; i >= 0; i -= 2) { |
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if (listeners[i] == ListSelectionListener.class) { |
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if (e == null) { |
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e = |
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new ListSelectionEvent(this, firstIndex, lastIndex, |
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isAdjusting); |
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} |
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((ListSelectionListener) listeners[i + 1]).valueChanged(e); |
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} |
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} |
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} |
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private interface FeatureSelectionOperation { |
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void doWithSelection(FeatureSelection selection, int first, int last) |
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throws DataException;
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} |
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} |